well it depends as PIM1 wont increase if boost never does and you don't plan on going past 23psi then its fine
theres probably a bit of room for a few more psi but more much and you will probably max it out
maxing it out means 5.0v flatline, and even then its just the same as its doing now, shoot across the load axis
so in summary, its fine and get it tuned now, you can use the correct table to shift it up and down on the load axis map
but remember that once target boost hits the PIM wont change, and therefore it wont move up or down on the map